40655607 has 4 divisors (see below), whose sum is σ = 54207480. Its totient is φ = 27103736.

The previous prime is 40655591. The next prime is 40655617. The reversal of 40655607 is 70655604.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 40655607 - 2⁴ = 40655591 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40655617) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6775932 + ... + 6775937.

It is an arithmetic number, because the mean of its divisors is an integer number (13551870).

Almost surely, 2^40655607 is an apocalyptic number.

40655607 is a deficient number, since it is larger than the sum of its proper divisors (13551873).

40655607 is a wasteful number, since it uses less digits than its factorization.

40655607 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13551872.

The product of its (nonzero) digits is 25200, while the sum is 33.

The square root of 40655607 is about 6376.1749505483. The cubic root of 40655607 is about 343.8535268564.

The spelling of 40655607 in words is "forty million, six hundred fifty-five thousand, six hundred seven".